Shock absorber



C. W. BISHOP.

SHOCK ABSORBER. APPLICATION FILED MAY 21.1921.

1Ag5,31 PatentedAug.15,1922.

CHARLES mammalian or iOsAivGELEs. capeonmagy; I

SHOCK ABSORBER.

Application filed May 21,

, sorbing mechanism for automotive vehicles.

It is an object of this invention to improve the riding qualities of an automobile or a similar automotive vehicle by reducing to a minmum the unpleasant rebound which is common to the ordinary vehicle, and to accomplish this purpose I provide a double acting shock absorbing mechanism, operative in both directions, preferably in combination with the conventional spring end on said automotive vehicle.

It is well known that when any spring is compressed it will rebound with considerable violence, depending on the degree of compression and the strength of the spring. It has been the object of many to reduce or eliminate this unpleasant rebound and more or less complicated mechanism has been employed to that end.

It is an object of this invention to provide a mechanism operative in both directions, having for its primary object to prevent or reduce to a minimum what may be termed chattering or similarly unpleasant and comparatively unrestricted vibration. With this end in view reference may be had to the accompanying drawings forming part of this specification.

Figure 1 is a side elevation and section of my invention as it might appear apply in to an automotive vehicle.

igure 2 is a plan view of a part of my invention.

Figure 3 is an enlarged view of a part of my invention on the line XX, Figure 1.

In the various figures, 1 is an automobile frame, 5 is a spring positioned below the frame 4, 6 is an axle substantially attached to the spring5, and on the axle 6 is mounted a housing 7, supported by brackets 8-8 Specification of Letters Patent.

attached to the housing 7 1921. Serial No. 471,492; j

Patented ug. 15, 19212. I

to the axle 6 by means-of bolts 99. 10-10 are a plurality of openings through the housing 7 and 11 respectively, are pins '55 and havingful crumed thereon a pair of! levers 12 -15, 1316, with the spring 14 between the ends 12* and 13,- respectively, and with suitable rounded ends to form hooks, substantially as represented by 17 and 18, respectively. i

1919 are a plurality of rollers mounted upon pins 19", held'in place by ends 19, forming a part thereby withthe bracket 20 and 21, which in turn is attached to the frame 4; by means of the bolts 2222. A similar mechanismis duplicated on the other side of the axle '6 and bears similar figures of reference, with figure carries an a behind it to distinguish the one part of the instrument from the are bolts holding a bracket carries a plurality of other. Thus, 22* 21 to a frame 4. 20 rollers 19 and 19*,

respectively. 1 Fulcrumed levers 15? I and 16 1 are positioned between these rollers and are curved out--- In this case, and 18*, similar to 17 and 18 in the other wrardly at their upper ends. 1 a part of the instrument 12' and 13?, respectively, are the other ends of the levers 15F-16 and have a spring let under tension operating to retard movement of the rollers 19719 in one direction'while slightly facilitating the-action in the other'direc tion. y

In the operation of this invention, it will be seen that one part of the instrument operates when the axle moves up and the other 1 V 1 part of the instrument acts when the axle '90 a moves down. This action is nothing more the exception that each orless than added friction. The object/0f this added friction being to prevent excessive vibration of the facilitate a more harmonious movement and improve the riding qualities of the vehicle to which it is attached.

I claim A shock absorbing mechanism adapted, to be interposed between the axle of an automotive vehicle and the frame of said vehicle and to comprise substantially a plurality of cross levers fulcrumed at the crossing point having a spring undervtenslo-n between the respective levers at one end of the device axle 6 and thus to downwardly,

f vers and expandlng a spring and to meet opposition in the "Way of re sistance by reason of compressing said leunder tension, there-sistance to compression of saidilevers being dependent on said spring, all substantially as set forth. p

" CHARLES WILLIAM BISHOP. 

